白垩粉

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  • powder
白垩粉白垩粉
  1. 常吉高速公路白垩系粉砂质泥岩风化特性研究

    Study on weathering characteristics of Cretaceous silty mudstone along the expressway from Changde to Jishou

  2. 湖南白垩系泥质粉砂岩风化特性研究

    Study on the weathering characteristics of Cretaceous argillaceous siltstone